27730034565 has 32 divisors (see below), whose sum is σ = 44846731776. Its totient is φ = 14629939200.

The previous prime is 27730034561. The next prime is 27730034593. The reversal of 27730034565 is 56543003772.

It is not a de Polignac number, because 27730034565 - 2² = 27730034561 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27730034561) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4861215 + ... + 4866915.

It is an arithmetic number, because the mean of its divisors is an integer number (1401460368).

Almost surely, 2^27730034565 is an apocalyptic number.

It is an amenable number.

27730034565 is a deficient number, since it is larger than the sum of its proper divisors (17116697211).

27730034565 is a wasteful number, since it uses less digits than its factorization.

27730034565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9149.

The product of its (nonzero) digits is 529200, while the sum is 42.

The spelling of 27730034565 in words is "twenty-seven billion, seven hundred thirty million, thirty-four thousand, five hundred sixty-five".